去掉html代码方法

-(NSString *)filterHTML:(NSString *)html

{

   NSScanner * scanner = [NSScannerscannerWithString:html];

   NSString * text = nil;

   while([scanner isAtEnd]==NO)

    {

        //找到标签的起始位置

        [scanner scanUpToString:@"<"intoString:nil];

        //找到标签的结束位置

        [scannerscanUpToString:@">"intoString:&text];

       //替换字符

        html = [html stringByReplacingOccurrencesOfString:[NSStringstringWithFormat:@"%@>",text]withString:@""];

    }

    //    NSString * regEx = @"<([^>]*)>";

    //    html = [html stringByReplacingOccurrencesOfString:regEx withString:@""];

   return html;

}